/*package homework;

public class StudentTest {
    public static void main(String[] args) {
        Student zs = new Student();
        zs.name = "张三";
        zs.age  = 25;
        zs.className = "2312";
        zs.stuId = "001";
        zs.sayHi() ;
        zs.study() ;
        zs.playWith("李四");

        Student ls = new Student("李四",24,"2312","002");
        ls.sayHi() ;
        ls.study();
        ls.playWith("张三");

        Student ll = new Student("刘六",23,"2312","003");
        ll.sayHi();
        ll.study();
        ll.playWith("张三");
    }
}*/
